BUG 13443: Fix crash when vtkMath.h is wrapped on FreeBSD.

The isinf() and isnan() macros on FreeBSD are defined in terms of
the isinf() and isnan() library functions.  A macro expansion bug
in the VTK 5.10 wrappers caused these macros to expand recursively,
resulting in a segfault in the wrapper tools.  The macro expansion
bug is fixed in VTK 6, but VTK 5.10 requires the vtkMath IsNan()
and IsInf() inline definitions to be blocked.

Change-Id: Ifc4ce554fd7273367f3fa6c6dad3b26dfa7871d4

Common/vtkMath.h

@@ -1337,19 +1337,23 @@ inline double vtkMath::ClampAndNormalizeValue(double value,
 }
 
 #if defined(VTK_HAS_ISINF)
+#ifndef __WRAP__ // Fixes bug 13443 for VTK 5.10
 //-----------------------------------------------------------------------------
 inline int vtkMath::IsInf(double x)
 {
   return (isinf(x) ? 1 : 0);
 }
 #endif
+#endif
 
 #if defined(VTK_HAS_ISNAN)
+#ifndef __WRAP__ // Fixes bug 13443 for VTK 5.10
 //-----------------------------------------------------------------------------
 inline int vtkMath::IsNan(double x)
 {
   return (isnan(x) ? 1 : 0);
 }
 #endif
+#endif
 
 #endif